DocumentController::initializeDocumentService

protected function initializeDocumentService()
{
	if($this->isViewAction())
	{
		$this->documentHandler = $this->documentHandlersManager->getDefaultHandlerForView();
	}
	else
	{
		$this->documentHandler = $this->documentHandlersManager->getHandlerByCode($this->getDocumentHandlerName());
	}

	if(!$this->documentHandler)
	{
		return false;
	}

	$this->setDocumentHandlerName($this->documentHandler::getCode());

	return true;
}